Lysine is least soluble in water in the pH ra | vedclass

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(C) Lysine is a basic amino acid with two amino groups and one carboxyl group. Its isoelectric point $(pI)$ is approximately $9.74$. An amino acid is

Vedclass · Accepted Answer

$9$ to $10$

Vedclass · Answer

(C) Lysine is a basic amino acid with two amino groups and one carboxyl group. Its isoelectric point $(pI)$ is approximately $9.74$. An amino acid is least soluble in water at its isoelectric point because the net charge on the molecule is zero,leading to minimum electrostatic repulsion between molecules. However,in the context of standard textbook questions regarding lysine,the range $9-10$ is often cited as the region where it approaches its isoelectric state.

Lysine is least soluble in water in the $pH$ range:

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